Amy asks Sheldon if they are ever going to have an intimate relationship and then they end up playing private D&D.
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Amy faked her continued illness, so Sheldon would take care of her. He decides to punish her by spanking her. She likes it!
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Amy gets sick and Sheldon takes care of her and that means putting Vaporub on her chest. She likes it!
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The gang is thrown for a loop when Leonard gets offered a great job overseas on the season finale of The Big Bang Theory. "The Bon Voyage Reaction is the 24th episode of the show's sixth season.
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We adore Simon Helberg as Howard on The Big Bang Theory. But, really, who does not?
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The girls join in on a game of Dungeons and Dragons for the very first time on The Big Bang Theory. "The Love Spell Potential" is the 23rd episode of the show's sixth season.
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Sheldon hires Professor Proton (guest star Bob Newhart) to come to his apartment on The Big Bang Theory. "The Proton Resurgence" is the 22nd episode of the show's sixth season.
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Amy tries to help Sheldon deal when his favorite TV show is cancelled before its proper conclusion on The Big Bang Theory. "The Closure Alternative" is the 21st episode of the show's sixth season.
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The Big Bang Theory Season 6 Quotes

Sheldon: Lipid residue. An anal autograph. A colon calling card, if you will.
Cleaner: Tuesday okay?

They can't just cancel a show like Alphas. You know? They have to help the viewers let go. Firefly did a movie to wrap things up. Buffy the Vampire Slayer continued on as a comic book. Heroes gradually lowered the quality season by season till we were grateful it ended.

Sheldon